Information on Viagra

Viagra has revolutionized the way that physicians treat men who are suffering from erectile dysfunction and impotence. For the first time, a prescription pill is available which is able to improve sexual activity in over 80% of men which are treated.

We highly recommend that you buy Viagra from a U.S. company. Be aware that there are many foreign pharmacies selling Viagra online without a valid prescription!

How does Viagra work?

Viagra is the brand name for sildenafil citrate. When sexual stimulation begins nitric oxide is released into the spongy tissue of the penis. It then activates an enzyme that increases the production of cyclic guanosine monophosphate, the chemical that relaxes the spongy tissue of the penis and facilitates an influx of blood. As specific enzymes slowly degrade cGMP the penis will slowly loose its ability to sustain an erection. Viagra works by inhibiting those enzymes that degrade cGMP, thereby enhancing ones ability to obtain and sustain an erection.

How to take Viagra:

Viagra is taken by mouth as needed between four hours and one-half hour before sexual activity (about one hour before is most effective). A 100mg tablet can be halved into 2 50mg doses. Take only as directed, usually once daily as needed. Sildenafil citrate works along with sexual stimulation to help achieve an erection.

How effective is Viagra?

Over twenty-one studies have been done to evaluate the efficacy of Viagra. Evaluation of drug activity was most often done using a self assessment questionnairre. During a six-month open labeled study, Viagra was found to improve sexual function in 88% of those treated. This included frequency, firmness, and maintenance of an erection, frequency of orgasm; frequency and level of desire; frequency, satisfaction and enjoyment of sexual intercourse.

Drug Interactions:

If you take Viagra with any nitrate medicine or recreational drug containing nitrates, your blood pressure could suddenly drop to an unsafe level. You could get dizzy, faint, or even have a heart attack or stroke. Nitrates are found in many prescription medicines that are used to treat angina (chest pain due to heart disease) such as: nitroglycerin (sprays, ointments, skin patches or pastes, and tablets that are swallowed or dissolved in the mouth), isosorbide mononitrate and isosorbide dinitrate (tablets that are swallowed, chewed, or dissolved in the mouth). Nitrates are also found in recreational drugs such as amyl nitrate or nitrite ("poppers"). If you are not sure if any of your medicines contain nitrates, or if you do not understand what nitrates are, ask your doctor or pharmacist.

Side Effects:

Headache, flushing, stomach upset, nasal stuffiness, diarrhea and dizziness might occur. If these effects persist or worsen, notify your doctor promptly.

Warnings:

If you take any medicines that contain nitrates - either regularly or as needed - you should never take Viagra.

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